US 11,744,924 B2
Stretchable nanocomposite skin material and related structures
Behnam Ashrafi, Montreal (CA); Michael Jakubinek, Ottawa (CA); Kurtis Laqua, Welland (CA); Yadienka Martinez-Rubi, Ottawa (CA); and Benoit Simard, Ottawa (CA)
Assigned to NATIONAL RESEARCH COUNCIL OF CANADA, Ottawa (CA)
Appl. No. 16/613,878
Filed by NATIONAL RESEARCH COUNCIL OF CANADA, Ottawa (CA)
PCT Filed May 14, 2018, PCT No. PCT/CA2018/050571
§ 371(c)(1), (2) Date Nov. 15, 2019,
PCT Pub. No. WO2018/209434, PCT Pub. Date Nov. 22, 2018.
Claims priority of provisional application 62/506,279, filed on May 15, 2017.
Prior Publication US 2020/0101202 A1, Apr. 2, 2020
Int. Cl. A61L 27/60 (2006.01); A61L 27/44 (2006.01); B32B 5/14 (2006.01); B32B 5/26 (2006.01)
CPC A61L 27/60 (2013.01) [A61L 27/443 (2013.01); A61L 27/446 (2013.01); B32B 5/14 (2013.01); B32B 5/266 (2021.05); A61L 2400/12 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/10 (2013.01); B32B 2262/106 (2013.01); B32B 2274/00 (2013.01); B32B 2307/51 (2013.01); B32B 2307/546 (2013.01); B32B 2605/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stretchable multiple-layer nanocomposite skin material comprising:
a stretchable single-layer nanocomposite material sheet comprising nanotubes and an elastomeric polymer, being provided as a polymer modified nanotube network, and having a nanotube content between 5 wt % and 90 wt %, an elastomeric polymeric content between 10 wt % and 95 wt %, and a thickness between 0.005 mm and 1 mm; and
at least one additional stretchable layer being laminated with the stretchable single-layer nanocomposite material sheet,
wherein the skin material has a reversible stretch capacity ranging from 5 to 50% and an elastic modulus ranging from 50 MPa to 10 GPa.